The subject of the contract is the implementation of the task: Construction and reconstruction of municipal sewage treatment plant in Międzyzdroje. As part of the project, the mechanical, biological and sludge node will be modernized. The works will include the liquidation or modernization of existing facilities and the construction of newly designed facilities.

The works will include the following activities:

- liquidation of existing facilities: sewage inflow collector, sand pit and sludge plot,

- modernization of existing facilities: main pumping station, Imhoff settler adapted to a retention tank together with the designed infusion chamber and gate valve chamber (with liquidation of integral parts of the Imhoff settler, i.e. round chamber, rectangular chamber, inflow channel, prefabricated wells and reinforced concrete wells), two reactors biological, social building and dispatch office,

- leaving the buildings unchanged: two secondary settling tanks, return and excess sludge pumping station, two sludge thickeners, sludge liquid dephosphatation chamber, sludge storage tank, sludge liquid pumping station, floating parts tank, drainage channel, LV switchboard, utility room, blower station, station sludge dewatering, economic shelter, PIX tank, outbuilding, 2 trafo stations, sludge plots,

- construction of the following newly designed facilities: sewage expansion chamber, biofilter, sand separation installation, sewage separation chamber, sewage catchment point, suspension separation building with sludge pumping station, intermediate sewage pumping station, biological reactor No. 3 (together with the rinse water tank and with the tank) methanol), process water pumping station, mixed sludge tank, sludge thickening building, sludge stabilization oxygen chamber,

- blower station, gate chamber, sludge dewatering and drying building, sludge receiving station, leachate pumping station, micro-sieve, measuring the amount of treated sewage, UV treatment of disinfected treated sewage, hygroma sludge tank (together with a carbon filter), carbon filter (at the retention tank) .